1. [BUG Backgroud]

1. 使用SetForegroundWindow(hwnd) 不能將目標視窗彈到頂端.
2. Win7 中使用WIN鍵後出現的BUG.

最終成功測試程式碼:

BOOL MyClass::PutMyWindowToTop(
) {
  OutputDebugString("In function PutMyWindowToTop!");
  HWND hwnd = FindWindow(NULL, L"MyWindow");
  if (hwnd == NULL) {
      OutputDebugString("Failed to get hwnd of MyWindow!"
 
);
      return FALSE;
  } else {
      OutputDebugString("Success get hwnd of MyWindow before switch to window");
  }
  if (!::IsWindow(hwnd)) {
      OutputDebugString("hwnd is not a valid window's handler!");
      return FALSE;
  }
  try {
      DWORD lock_timeout = 0;
      DWORD lock_timeout_after =
 
 0;
      HWND  current_hwnd = ::GetForegroundWindow();
      DWORD dw_this_tid = ::GetCurrentThreadId();
      DWORD dw_current_tid = ::GetWindowThreadProcessId(current_hwnd, 0);
      if (dw_this_tid != dw_current_tid) {
          ::AttachThreadInput(dw_this_tid, dw_current_tid, TRUE);

          ::
 
SystemParametersInfo(SPI_GETFOREGROUNDLOCKTIMEOUT, 0, &lock_timeout, 0);
          if (lock_timeout >= 100) {
             ::SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, 0, SPIF_SENDWININICHANGE | SPIF_UPDATEINIFILE);
             if (0 == ::AllowSetForegroundWindow(dw_this_tid)) {
                 OutputDebugString("Failed to AllowSetForegoundWindow!");
             } else {
                 OutputDebugString("Successed in AllowSetForegoundWindow!");
             }
             ::SystemParametersInfo(SPI_GETFOREGROUNDLOCKTIMEOUT, 0, &lock_timeout_after, 0);
          }
      }
      char temp_s[60] = { 0 };
      sprintf(temp_s, "lock_timeout: %u, after: %u", lock_timeout, lock_timeout_after);
      OutputDebugString(temp_s);
      //Test SetWindows position.
      if (0 == ::ShowWindow(hwnd, SW_SHOWNORMAL)) {
          OutputDebugString("ShowWindow return window was previously hidden!");
      } else {
          OutputDebugString("ShowWindow return window was previously visible!");
      }
      if (0 == ::SetWindowPos(hwnd, HWND_TOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE)) {
          OutputDebugString("SetWindowPos first time was failed!");
      } else {
          OutputDebugString("SetWindowPos first time was succeed!");
      }
      if (0 == ::SetWindowPos(hwnd, HWND_NOTOPMOST, 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE)) {
          OutputDebugString("SetWindowPos second time was failed!");
      } else {
          OutputDebugString("SetWindowPos second time was succeed!");
      }
      
      if (0 == ::SetForegroundWindow(hwnd)) {
          OutputDebugString("Failed to set this window to foreground!");
      } else {
          OutputDebugString("Success in set this window to foreground!");
      }

      if (dw_this_tid != dw_current_tid) {
          ::SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, (PVOID)lock_timeout, SPIF_SENDWININICHANGE | SPIF_UPDATEINIFILE);
          ::AttachThreadInput(dw_this_tid, dw_current_tid, FALSE);
      }
  } catch (...) {
      OutputDebugString("Failed to put MyWindow window to top!");
  }

  OutputDebugString("End function PutMyWindowToTop!");

  return TRUE;
}

2. 最終分析

通過最後的除錯結果來看, 設定不設定Foreground time out 引數對結果沒有影響. 相應的程式碼可以去掉. 這個感覺是個老問題, 在論壇上找到了好多的討論, 但是並不知道為什麼. 這個還得大神來.

另外: SetActiveWindow是幹什麼的? 獲取輸入佇列?

related website:

3. others:

1. 在pdf, EXCEL 檔案中設定超連結時, 路徑上不能有#字元.
2. CSDN的MarkDown 編輯介面好用了一些, 但是為什麼程式碼段用黑色背景, 感覺不配啊! (雖然我在編輯程式碼的時候用黑色的! 哼!)